Finding the Third Proportional to 302,356.50 and 457,446

Step by Step Solution

1. Step 1: Write the proportion equation
   302,356.50 : 457,446 = 457,446 : x
2. Step 2: Convert to fraction form
   302,356.50/457,446 = 457,446/x
3. Step 3: Cross multiply
   302,356.50x = 457,446 × 457,446
4. Step 4: Simplify right side
   302,356.50x = 209,256,842,916
5. Step 5: Solve for x
   x = 209,256,842,916/302,356.50
6. Step 6: Final answer
   x = 692,086.47